LESSON 1
THE HUMAN DIGESTIVE SYSTEM
Section I. INTRODUCTION
1-1.
GENERAL
a. Definition. The human digestive system is a group of organs designed to
take in foods, initially process foods, digest the foods, and eliminate unused materials of
food items. It is a hollow tubular system from one end of the body to the other end.
See figure 1-1.
Figure 1-1. The human digestive system.
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